Facilitating Peace: The Role of IHL in Transition from Conflict

When armed conflicts finally cease, the question of what comes next looms large. International Humanitarian Law provides more than just rules for combat-it offers a structured pathway from the chaos of war to the stability of peace. This transition isn’t automatic or simple, but IHL’s provisions create the legal foundation necessary for accountability, reconciliation, and the restoration of normal life.

The dual mandate of post-conflict IHL 🔗

IHL addresses the transition from conflict to peace through two seemingly contradictory principles that must work together. On one hand, it requires states to investigate and prosecute war crimes, ensuring that those responsible for grave breaches face justice. On the other hand, it encourages the granting of amnesties for those who merely participated in hostilities without committing war crimes. This balance recognizes a fundamental truth: lasting peace requires both accountability for atrocities and forgiveness for ordinary combatants.

The Geneva Conventions establish that states must search for persons who have committed grave breaches and either prosecute them or extradite them to another state for trial. This obligation applies regardless of the perpetrator’s nationality, creating a system of universal jurisdiction for serious violations. However, this duty to prosecute is carefully limited to actual war crimes, not to the mere act of fighting.

Article 6(5) of Additional Protocol II 🔗

Perhaps no provision better illustrates IHL’s approach to peacebuilding than Article 6(5) of Additional Protocol II to the Geneva Conventions. This article states that at the end of hostilities, authorities in power “shall endeavour to grant the broadest possible amnesty” to persons who participated in armed conflict or were detained for conflict-related reasons.

The language is carefully chosen. The word “endeavour” indicates this is a strong encouragement rather than an absolute mandate, recognizing that each post-conflict situation has unique political realities. The phrase “broadest possible” signals that amnesties should be generous in scope, covering a wide range of conflict participants. This provision aims to facilitate the reintegration of former combatants into society and prevent cycles of revenge that could reignite violence.

The critical exception for war crimes 🔗

While Article 6(5) promotes broad amnesties, customary international law makes clear that this encouragement does not extend to war crimes. Persons suspected of, accused of, or sentenced for war crimes cannot benefit from such amnesties. This exception protects victims’ rights and upholds the principle that certain acts are so serious they demand accountability regardless of political expediency.

International courts have reinforced this limitation. The Inter-American Court of Human Rights, in examining El Salvador’s post-conflict amnesty law, acknowledged that amnesties can be justified to pave the way for peace, but held that they cannot preclude investigation and prosecution of war crimes. Similarly, the European Court of Human Rights has stated that amnesties for serious violations are incompatible with states’ obligations under international law.

Fair trial guarantees as a foundation for justice 🔗

When prosecutions do occur, IHL insists on rigorous procedural protections. Common Article 3 of the Geneva Conventions prohibits “the passing of sentences and the carrying out of executions without previous judgment pronounced by a regularly constituted court” that provides all judicial guarantees recognized as indispensable.

These guarantees include the right to be informed of charges, the right to present a defense, access to qualified legal counsel, the presumption of innocence, and protection against coerced confessions. For prisoners of war facing trial, the Third Geneva Convention provides that they retain their protected status throughout legal proceedings and cannot be subjected to public curiosity, which would increase suffering for them and their families.

Why fair trials matter for peace 🔗

The quality of judicial processes plays a decisive role in whether victims and society consider past harms to have been adequately addressed. When trials are perceived as show trials or victor’s justice rather than genuine accountability, they can actually deepen resentment and make reconciliation harder. Fair trials, by contrast, help establish the rule of law, demonstrate that all sides are held to the same standards, and create confidence in post-conflict institutions.

Humane treatment during and after detention 🔗

IHL’s protections don’t end when fighting stops. The conventions require that prisoners of war and civilians detained during conflict continue to receive protection until their final release and repatriation. They must be treated humanely at all times, provided with adequate food and medical care, allowed to communicate with family members, and permitted to practice their religion.

These continuing obligations recognize that the end of hostilities doesn’t immediately restore normalcy. People remain in detention, families remain separated, and communities remain disrupted. By maintaining protections during this transitional period, IHL helps prevent new grievances from forming even as old conflicts are resolved.

How amnesty provisions facilitate reconciliation 🔗

The amnesty provisions in IHL serve multiple important functions in peacebuilding. First, they provide legal motivation for armed groups to respect IHL during conflict, knowing they can receive amnesty for ordinary participation if they avoid war crimes. Second, they create space for negotiated settlements by offering combatants a pathway back to civilian life rather than imprisonment.

Colombia’s 2016 peace agreement illustrates this principle in practice. The authorities used IHL’s framework on amnesties to facilitate the demobilization of armed groups while maintaining accountability for serious crimes. This approach recognized that prosecuting every person who participated in decades of conflict would be neither feasible nor conducive to reconciliation, but that accountability for atrocities remained essential.

The balance between justice and peace 🔗

This dual approach-accountability for war crimes, amnesty for lesser offenses-reflects a sophisticated understanding of transitional justice. Blanket amnesties that shield all perpetrators from consequences can deny victims justice and allow impunity to flourish. But attempting to prosecute every conflict participant can overwhelm judicial systems, leave former combatants with no incentive to lay down arms, and perpetuate cycles of violence.

IHL navigates this tension by distinguishing between acts that cross fundamental lines of human dignity and ordinary participation in hostilities. Combatants in international armed conflicts who comply with IHL cannot be prosecuted merely for fighting-this is their combatant immunity. In non-international armed conflicts, while there is no formal combatant immunity, the amnesty provisions serve a similar reconciliatory function.

IHL’s ongoing obligations after conflict 🔗

Several IHL obligations explicitly extend beyond the end of armed conflict. States must continue efforts to account for missing persons, reunite separated families, clear landmines and unexploded ordnance, and ensure the proper handling of human remains. These obligations recognize that the humanitarian consequences of war persist long after the last shot is fired.

The Convention on Cluster Munitions explicitly acknowledges in its preamble that unexploded remnants kill civilians, obstruct economic development, impede reconstruction, delay refugee returns, and negatively impact peacebuilding efforts. By requiring clearance of such hazards, IHL removes physical obstacles to communities rebuilding their lives.

Building trust through special agreements 🔗

IHL encourages parties to conflict to enter into special agreements that can serve as building blocks toward broader peace. These agreements might establish neutral zones, facilitate humanitarian relief, enable prisoner exchanges, or create temporary ceasefires. While limited in scope, such arrangements demonstrate that adversaries can cooperate, building the mutual trust necessary for more comprehensive peace negotiations.

These humanitarian agreements differ from political negotiations because they focus on human needs rather than political demands. They allow parties to take steps toward peace without requiring them to concede on core political issues, creating momentum that can eventually lead to broader settlements.

Why respecting IHL matters for reconciliation 🔗

The manner in which conflicts are fought has profound implications for what comes after. When parties systematically violate IHL-targeting civilians, torturing prisoners, destroying essential infrastructure-they create deep reservoirs of trauma and resentment that can persist for generations. Research has shown that 71% of individuals who joined violent extremist groups pointed to government actions like killings or arrests of family members as the triggering incident.

Conversely, when parties respect humanitarian limits even during intense fighting, they avoid creating the horrific memories that make reconciliation extraordinarily difficult. Respecting protections for civilians, treating detainees humanely, and avoiding unnecessary destruction preserves some measure of trust that can be built upon when peace comes.

The intersection with transitional justice 🔗

IHL’s provisions on accountability and amnesty form part of a broader transitional justice framework. Transitional justice encompasses not just prosecutions, but also truth commissions, reparations programs, and institutional reforms. The goal is to ensure accountability while fostering sustainable peace and restoring the rule of law.

Effective transitional justice requires consultation with victims and society at large. For amnesties to be legitimate and contribute to healing rather than impunity, they must be carefully crafted through inclusive processes that respect victims’ rights while acknowledging the practical necessities of peacebuilding. Conditional amnesties that require truth-telling, acknowledgment of harm, or participation in restorative justice programs can sometimes serve this purpose better than blanket measures.

The practical reality of implementation 🔗

While IHL provides the legal framework, its success in facilitating peace depends entirely on implementation. States must establish domestic legislation that enables prosecution of war crimes, create functional court systems capable of handling complex cases, and develop reintegration programs for former combatants. Without these practical measures, even the best legal provisions remain abstract.

Many countries have incorporated IHL requirements into national law. For example, numerous states have passed amnesty laws that explicitly exclude war crimes and other international crimes from their scope, following IHL’s guidance. This demonstrates recognition that the framework can work when properly applied, balancing the competing demands of justice and reconciliation.

What do you think? Can societies genuinely reconcile after armed conflict if serious crimes go unpunished? How should the balance between prosecuting perpetrators and reintegrating former combatants be struck in practice?

References

1. https://ihl-databases.icrc.org/customary-ihl/eng/docs/v1_rul_rule158
2. https://en.wikipedia.org/wiki/Geneva_Conventions
3. https://www.icrc.org/sites/default/files/document/file_list/170545_amnesties_factsheet_14_july_2017_clean_en.pdf
4. https://ihl-databases.icrc.org/customary-ihl/eng/docs/v1_rul_rule159
5. https://www.ohchr.org/en/instruments-mechanisms/instruments/geneva-convention-relative-treatment-prisoners-war
6. https://www.icrc.org/en/document/prisoners-war-what-you-need-know
7. https://international-review.icrc.org/articles/ihl-search-for-peace-lessons-from-colombia-914
8. https://international-review.icrc.org/articles/international-humanitarian-law-and-peace-a-brief-overview-927
9. https://www.genevacall.org/news/amnesties-and-armed-conflicts/